Setting device for the display and type wheels of cash registers



March 17, 1925. 1,529,955

w, KOLBE SETTING DEVICHFOR TIIE DISPLAY AND TYPE WHEELS OF CASH REGISTERS Filed Aug, 1 4922 2 Sheets-Sheet 1 March 17, 1925. 1,529,955

w. KOLBE SETTING DEVICE FOR THE DISPLAY AND TYPE WHEELS 0F CASH REGISTERS Filed Aug. 19, 1922 2 Sheets-Sheet a Patented Mar. 17, 1925.

UNITED STATES WERNER KOLBE, or ESSEN, GERMANY, as

T0 FRIED. KRUPP AKTIENGESELL- SCI-IAFT, O13 ESSEN-ON-THE-EUI-IR, GELt-ETANY.

SETTING DEVICE FOR THE DISPLAY AND TYPE WHEELS OF CASH REGISTERS.

Application filed August 19, 1922.

To all whom it may concern:

Be it known that I, WERNER Koren, re-- siding at Essen, Germany, a citizen of the German Republic, have invented a certain 6 new and useful Improvement in Setting Devices for the Display and Type Wheels of Cash Registers, of which the following is a specification.

This invention relates to devices for set ting the display and type wheels of cash registers and it has, more particularly, reference to devices of the kind comprising members oscillating to and fro for driving the setting discs by which the display and type wheels are, in a well-known manner, moved directly from the old to the new position without having to pass first through the zero-position.

The invention essentially consists in that a carrier for a planet-pinion which is in positive connection with the display and type wheels as well as with the setting disc, is moved into its zero-position, determined by a fixed stop, during the setting oscillation of the setting disc driving member. The display and type wheels are thereby rotated in accordance with the difi'erence between the numeral value set in the previous operation of the cash register and the value to be newly set, the said rotation being either effected, in one sense, by rotating the setting disc while the carrier of the planet-pinion is stationary, or, in the other sense, by rocking the planet-pinion carrier while the setting disc is stationary. In the return oscillation of the setting disc the planet-pinion carrier will then come into a position which corresponds to the newly setnumeral value. din embodiment of the subject-matter of the invention is diagrammatically illustrat ed, by way of example, in connection with a key cash register in the accompanying drawing.

Fig. 1 is a partial side elevation of the cash register in inoperative position, after the value of the third key from below has been previously registered;

Fig. 2 is an elevation corresponding to Fig. 1, illustrating the position of the parts after the sixth key has been depressed and the setting oscillation caused thereby terminated;

Fig. 3 is an elevation similar to Fig. 2 after the return oscillation, and

Serial No. 583,029.

Fig; 4 is a sectional view taken on the plane indicated by the line 4-4 in Fig. 1.

The setting discs A are mounted for free rotation on a shaft B with which the discs C, which serve to drive the setting discs, are ri idly connected. Each time the cash register is operated, the shaft B will have imparted to it a rocking motion in a wellknown manner, by means of a crank mechani m not shown in the drawing, namely a setting oscillation in clockwise direction and a return oscillation. Each driving disc (.3 possesses an offset 0 adapted to be engaged with the offset toe of setting bolt D which is pivotally connected to the setting disc A, further a cam pin 0 for operation with a planet-pinion carrier E and another cam pin 0 for returning the setting disc A into its zero-position. Mounted for oscillation by a pin a on each setting disc A is a bell crank lever F engaging the setting bolt D. The

setting bolts are tapered at their free ends and adapted to engage notches g of a locking plate G. The bolts D are held in this position by the rim 0 of the driving disc C. The setting discs A are further provided each with a recess a (Fig. 2) for engagement by the pin 0 of the driving disc C and with a toothed rim c which is engaged by a planet-pinion H mounted on the carrier E and by a pinion J which is mounted at the casing and which is suitably coupled with the adding wheels during the setting oper ation. The carrier E, moreover, carries an intermediate pinion K which is in mesh with a planet-pinion H and with the toothed rim Z of a double segment L. The planet-pinion H is equal to the planet-pinion H and is fixed on the same shaft k as the latter. The carrier E is provided at one side with a recess 6 (Figs. 1 and 3) for receiving the cam pin 0 and at the opposite side with a recess 6 (Figs. 1 and 3) for a stop rod M which is fastened to the casing and which serves to limit the rockin movement of all of the planet-pinion carriers E. The arrangement of the rod M and the recesses e 0 of the planet-pinion carrier E is made so as to cause the pin 0 of the driving disc C to engage the recess 0 and to cause the recess c to engage the rod M when, in the setting operation, the disc C has been swung into its uppermost position (Fig. 2). The

double segment L possesses another toothed thrown into engagement with the wheel N.

The operation of the described device is as follows:

After preparinga registration by depress ing akey, an operation of the cash register will cause a to and fro oscillation ol' the driving disc C, the locking bar 0 relea ing the toothed wheel N .prior to the setting -oscillation and locking it again prior to the the setting disc A until the bell crank :key

return oscillation. in the setting oscillation, which takes; place in clockwise Cll-icC JlOIl, the offset 0 of the disc G willcarry along w? l it the setting bolt D and together therewith lever F will come to strike :against the toe of tile depressed key. The bell crank lever F is thereby rocked on its pivot a? and the setting bolt 1) shifted sons to cause it to release the offset 0 of the driving disc C and to engageone of the notches or the locking plate G by its free end. The setting bolt 1) and, consequentlyythe setting disc A too, :are held .in this position by the rim 0" of thedriving disc C gliding along the toe of the setting bolt 1') during the continued oscillation of the driving disc.

The rotatlon .ol' the setting disc A will cause the pinion J, :whichengages its toothed rim a3, and the adding mechanism connected therewith to bewadjusted thev planet pinion H as well. as the intermediate pinion K to 'bQiIOtEttGCl. However, the doublesegmentfL and the toothed wheel N are not yet moved because of the larger mass and friction of the display, type and intermediate wheels, but the intermediate wheel Kwill roll in clockwise direction along the toothed "rim L- which is still stationary, the planet-pinion H likewise srolling at the re volving toothedxrim .a. but in the. opposite direction so thatthe planet-pinioncarrier E 'will be rocked in clockwise direction at a lower speed than the setting disc A.

i In the positionbt rest-ct the=macliine the planet-pinion carrier E is in a position, whichdepends on the value of the iliey idepressedat the previous operation otthe cash register. The distance between therecess c and vthestop M is :the larger the higher the value ofthat depressed key. In the case no was depressed the recess 0 touchesthe stop 'M. e

It will be assumed that-now a higher :key (key 6) thaninfthe previous cash register {operation (key 3) is depressed. During the rotation otthe setting disc A tirstofall the carr er s caken alongnp to the stop .M,

whereby {the'intermediate pinion K rolls over the toothed rim l! and the planet n sl n Haslls -n er n -manne Ovgnthe like a common wheel gearing supplied with fixed shafts and translates the remainder movement of the setting disc A units) on the wheel i l adjusting the display and type wheels in a clockwise direction. Thus the display and type wheels are moved Clireetly from the old (position into the new position (position 6).

(key 3) as in the previousregistration the carrier E will reach its stop ,M at the moment-the toothed rinio is coming to rest, so that the toothed wheel N retains its position. I

When depressing a hey (hey Z) ;-lying lower than that operated in the previous op eration of the cash register (key 3,), theca1.'- rier E by the motiono-f the disc A is not brought up to thestop' M but only-tea .posi- '85 hen depressing however, the same key the toothed trim a isstationaryandthe can rierE is-being oscillatedthe :PlfllltEi-PIHIODS H and H will now rotate illl a direction opposit-e to that before vand the toothed wheel .N will now be adjusted in counter clockwise direction from the old (position 3) into the new position (position-=1).

vAs soon as the reversal of the'fdisplay and type. wheels has been :terminat-ed, the toothedwheel N willbeiheld in'its new position :by the locking bar 0. In the return oscillation of the driving disc G its pin 0 will-engage therecess a of the setting disc A and move the same back into its initialposition, after the setting bolt D has been re- :leasedifromtherim [of the driving disc C.

The return rotation of the toothed-rim a caused thereby will likewise'ibe imparted :to the planetepinion carrier E, so that the planet-pinion EH will revolve at the .toothed rim i in clockwise direction until the car :ri'er will stop, till :the next operation of the cash register, at a distance from the-stop 1% corresponding .to :the value of azthe key depressed last, since the; degree of return oscillat-ion of the setting disc A depends upon this value.

The described arrangement offers the advantage that the new setting of the display and type wheels takes place at the beginning of the operation of the machine so that relatively much time remains for the printing operation. It would, however, not alter the spirit of the invention it the arrangement would be made so as to cause the setting discs to be returned to their zero-position at the beginning of the operation of the machine.

Claims 1. A device for setting the display and type wheels of cash registers, comprising setting discs, members rockable to and fro for driving the setting discs and means for rotating the display and type wheels directly from the old into the new position, a swingingly mounted carrier for a planetpinion, means for positively connecting the said planet-pinion with the display and type wheels as well as with the respective setting disc, and a fixed stop for limiting the swinging movement of the planet-pinion carrier in one direction and determining the zero position into which the carrier is adapted to be moved in the setting oscillation of the' driving member of the setting disc.

2. A device for setting the display and type wheels of cash registers, comprising setting discs, members rookable to and fro for driving the setting discs and means for rotating the display and type wheels directly from the old into the new position, a swingingly mounted carrier for a planetpinion, means for positively connecting the said planet-pinion with the display and type wheels as well as with the respective setting disc, a fixed stop for limiting the swinging movement of the planetpinion carrier in one direction and determining the zero position into which the carrier is adapted to be moved in the setting oscillation of the driving member or the setting disc, and a driver on the said driving member, said driver be ing adapted to engage the planet-pinion carrier in each setting oscillation of the driving member so as to secure the return of the planet-pinion carrier to its zero position in each setting operation.

The foregoing specification signed at Essen, Germany, this 28th day of July, 1922.

WERNER KOLBE. 

